1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13fbb07edb6e3def0da840b57b9f7beffac08d147f5440cbb37fd685ea43e01. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cbf0973e-5d47-4a68-9e64-ebc5b268d40e.json and https://artists.proofprofile.net/proofs/artist/cbf0973e-5d47-4a68-9e64-ebc5b268d40e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ab5d40d4c90a5136addae4895c3e61dda5ca650887661e438a0859f1e45291. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4dsgs825Eef6Xi1rybGRMH.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4dsgs825Eef6Xi1rybGRMH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fe70a6bc4dd0982c6e1f20c3669460b0186f20a48897d7f6ec2f24a3a275df. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2brgG4N1WBW8P2WnZtlgvt.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2brgG4N1WBW8P2WnZtlgvt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365c8d356f1ce630a86d956893aff618d8824d664bca1c4ebcfc9b836c019049. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0gVrv47joKr6bbu4yhaJxy.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0gVrv47joKr6bbu4yhaJxy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42c3c20f4cdc4333753d8db5071bb34eefdcc9c000b0a9a63d060a578131437. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2HoO3AEtBwFlfXSRQoWfn4.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2HoO3AEtBwFlfXSRQoWfn4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb733a43f8a9287c256c57a5b3f1decc14905208dd0155d85da6a01a6758ff26e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7JnMaqu29RfxT0whzArANJ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7JnMaqu29RfxT0whzArANJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffded7d24d9f662e2505feafce364ec1e175149ef6dd43402c7c993b44c7efb5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6k1987MTZo2RsH9NHEDzVh.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6k1987MTZo2RsH9NHEDzVh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9443ea75fd4a8e932fa74162d44c9f05d6de2a39543719eb0c47222f09593fbd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4hqlTPfulgxcyIHhpcO55N.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4hqlTPfulgxcyIHhpcO55N.
{"copyright_id":"0x30f8557e7f147e918b909a8fbf0f7cef605a9efb1653b8cd28f77f1b4dd6d1d4","isrc":"FR96X1966203","name":"Pinlig Pinlig","registered_at":"2026-06-21T07:58:00Z","spotify_id":"1KUevI5yKaoyxUPjliyh3p","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f8557e7f147e918b909a8fbf0f7cef605a9efb1653b8cd28f77f1b4dd6d1d4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1KUevI5yKaoyxUPjliyh3p.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1KUevI5yKaoyxUPjliyh3p.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883a631790be0d9879cd75926c5e544dc2c4c8de692715ba92ca96e0d306989c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3kQHIYmaquY01x7SCH813W.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3kQHIYmaquY01x7SCH813W.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace2fad1604a09ea5b14a90513283f45ea6ec77a91420c7b947821246f798f2b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/19OO0O5MjOFdfRMBfDhOcS.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/19OO0O5MjOFdfRMBfDhOcS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129f065d731d8b72891407b81fcbb3010fc9975b18cf1346ab9d8008fe29e2af. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2S0axAvA6K9WXMkk3wHfl2.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2S0axAvA6K9WXMkk3wHfl2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aeef2891f71dd4312b62936a5d88cdf2fe1b834b3621bbf571750fd0d424655. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3cD1A0xZI9EqA7Q9ovXP8l.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3cD1A0xZI9EqA7Q9ovXP8l.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42c3c20f4cdc4333753d8db5071bb34eefdcc9c000b0a9a63d060a578131437. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/08eUxCvafPvLZGapVha996.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/08eUxCvafPvLZGapVha996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3127c6db185bb785bd287af2c694f225b472af5eb90ca957c128b14fb626d5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7EoTYwba1v41emxXFGw1EO.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7EoTYwba1v41emxXFGw1EO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6130dd6cc24d0d468a795e3faa731245d9c82d760ddc8b0963e66ced4c1153da. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/21HWeEwqjSwA0G7G5xC71n.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/21HWeEwqjSwA0G7G5xC71n.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2303eadb8235d782af409497546d37940234bc40b84df6c852b883a863c83c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5ZgdgwYr6EZ0dgBi0sQvTA.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5ZgdgwYr6EZ0dgBi0sQvTA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc765046b5b70ec339039963f6cea157f8974c63816d400bdd84ecee4b0bf84ee. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0CvfRZhEgEfNs6kAbHRF2G.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0CvfRZhEgEfNs6kAbHRF2G.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4bd67bb520420f79806929a56035958b50b37e18e82a4774253c63be7ab10b9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1GeoJRIlfqhIxltFsOOleu.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1GeoJRIlfqhIxltFsOOleu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937873fdb5b62dfadf488748f8746c78aaa331f10aea061d45220af3e852b7aa. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5yL10uWMiZWDtKKz2hlg2d.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5yL10uWMiZWDtKKz2hlg2d.
{"copyright_id":"0x20dee4d8e26cebd236b238ec42db44dc60c9fc66bd6314cd36a4a55c63264db4","isrc":"DK92A1200806","name":"Det Var Igår (feat. Fragga Just)","registered_at":"2026-06-27T11:26:15Z","spotify_id":"45u2ON5kLJGJpRWh2tPgtv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20dee4d8e26cebd236b238ec42db44dc60c9fc66bd6314cd36a4a55c63264db4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/45u2ON5kLJGJpRWh2tPgtv.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/45u2ON5kLJGJpRWh2tPgtv.
{"copyright_id":"0xbcea058b832f3e3aa33b134dfd20e3bf2dac1197ab2c50df642e8a4636429593","isrc":"DK92A1200807","name":"Nat På Nørrebro","registered_at":"2026-06-10T20:16:21Z","spotify_id":"5DqPxKZ3S7szUeDWnAYG8O","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcea058b832f3e3aa33b134dfd20e3bf2dac1197ab2c50df642e8a4636429593. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5DqPxKZ3S7szUeDWnAYG8O.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5DqPxKZ3S7szUeDWnAYG8O.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7dec9e3a6a6a102bb5760c93d11008ea3d129767fbbe059f8b7e8dbfb81954d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/56COnjhbH1ny65FFPYIkDd.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/56COnjhbH1ny65FFPYIkDd.
Senere (feat. Kidd, TopGunn, Klumben & ELOQ)
{"copyright_id":"0x9fc9c6a8d637e50557e7ebe1f27d8b7859e4c72c02e9bb57a7810df20595418e","isrc":"DKADG2100432","name":"Senere (feat. Kidd, TopGunn, Klumben & ELOQ)","registered_at":"2026-06-07T19:49:17Z","spotify_id":"0FVdUoCbQuwr73hk7CAm6s","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc9c6a8d637e50557e7ebe1f27d8b7859e4c72c02e9bb57a7810df20595418e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0FVdUoCbQuwr73hk7CAm6s.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0FVdUoCbQuwr73hk7CAm6s.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326fd71fab3e4ded08cf507019077cfb416b1e334f6ccd3b183f278f86260c43. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/24b8Ldsry9jsRS16DhMBKE.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/24b8Ldsry9jsRS16DhMBKE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832016112bb4061062aeebaa8696271656b12e10cbe6702008578b15f0c6b815. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4UUxcEVJQ0zJbvhaSP8Yi3.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4UUxcEVJQ0zJbvhaSP8Yi3.
Helt Ny TN (feat. KIDD, TopGunn, Klumben & ELOQ)
{"copyright_id":"0x209d9ec9e978c156faafe20d3bb84499d4287268b4d5e9500af04c722c39acea","isrc":"DK2DY2200201","name":"Helt Ny TN (feat. KIDD, TopGunn, Klumben & ELOQ)","registered_at":"2026-06-18T15:35:57Z","spotify_id":"3bPL7S5klFmqJTZIckJyAV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209d9ec9e978c156faafe20d3bb84499d4287268b4d5e9500af04c722c39acea. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3bPL7S5klFmqJTZIckJyAV.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3bPL7S5klFmqJTZIckJyAV.